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SUSE SLES15 Security Update : flatpak (SUSE-SU-2026:1541-1)

critical Nessus Plugin ID 309893

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1541-1 advisory.

 - CVE-2026-34078: improper processing of app-controlled symlinks by sandbox-expose can lead to sandbox escape, host file access and code execution in the host context (bsc#1261769).
 - CVE-2026-34079: improper removal of outdated cache files allows for arbitrary file deletion on the host filesystem (bsc#1261770).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1261769

https://bugzilla.suse.com/1261770

https://lists.suse.com/pipermail/sle-updates/2026-April/045864.html

https://www.suse.com/security/cve/CVE-2026-34078

https://www.suse.com/security/cve/CVE-2026-34079

Plugin Details

Severity: Critical

ID: 309893

File Name: suse_SU-2026-1541-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/23/2026

Updated: 4/23/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.1

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N

CVSS Score Source: CVE-2026-34079

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-34078

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:system-user-flatpak, p-cpe:/a:novell:suse_linux:flatpak-zsh-completion, p-cpe:/a:novell:suse_linux:flatpak-remote-flathub, p-cpe:/a:novell:suse_linux:libflatpak0, p-cpe:/a:novell:suse_linux:flatpak, p-cpe:/a:novell:suse_linux:flatpak-devel, p-cpe:/a:novell:suse_linux:typelib-1_0-flatpak-1_0, cpe:/o:novell:suse_linux:15

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 4/22/2026

Vulnerability Publication Date: 4/7/2026

Reference Information

CVE: CVE-2026-34078, CVE-2026-34079

IAVA: 2026-A-0317

SuSE: SUSE-SU-2026:1541-1